Wyoming Snow Precipitation Update
United States Natural Resources Water and Climate Center
Department of Conservation Portland, Oregon
Agriculture Service
S N O W - P R E C I P I T A T I O N U P D A T E
Based on Mountain Data from NRCS SNOTEL Sites
As of SATURDAY: NOVEMBER 19 , 2011
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 3.9 2.5 156 7.2 4.3 167
COTTONWOOD CREEK 7670 2.7 2.9 93 7.3 5.9 124
GRAND TARGHEE 9260 8.9 -M * 8.3 -M *
GRANITE CREEK 6770 2.6 2.0 130 4.6 3.7 124
GRASSY LAKE 7265 4.2 4.8 88 9.2 6.8 135
GROS VENTRE SUMMIT 8750 2.2 2.8 79 3.5 3.3 106
GUNSIGHT PASS 9820 3.0 -M * 4.5 -M *
LEWIS LAKE DIVIDE 7850 4.5 4.7 96 9.4 6.8 138
PHILLIPS BENCH 8200 3.6 4.1 88 6.0 5.1 118
SALT RIVER SUMMIT 7760 1.9 1.5 127 3.7 3.6 103
SNAKE RIVER STATION 6920 3.0 2.4 125 7.3 4.5 162
SPRING CREEK DIVIDE 9000 4.2 4.4 95 5.8 5.3 109
THUMB DIVIDE 7980 3.2 2.6 123 6.0 3.9 154
TOGWOTEE PASS 9580 5.3 5.2 102 7.0 5.4 130
TWO OCEAN PLATEAU 9240 9.4 6.1 154 7.4 6.0 123
WILLOW CREEK 8380 3.8 5.1 75 9.1 6.9 132
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Basin wide percent of average 107 131
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 6.2 5.1 122 6.5 4.2 155
BLACK BEAR 8170 7.3 6.3 116 10.0 7.5 133
CANYON 7870 2.3 2.0 115 3.8 3.6 106
FISHER CREEK 9100 7.0 6.0 117 9.5 7.0 136
MADISON PLATEAU 7750 4.4 3.8 116 8.5 5.0 170
NORTHEAST ENTRANCE 7350 1.4 1.3 108 3.6 3.0 120
PARKER PEAK 9400 5.7 4.9 116 7.7 4.1 188
SYLVAN LAKE 8420 3.9 4.4 89 8.0 5.1 157
THUMB DIVIDE 7980 3.2 2.6 123 6.0 3.9 154
TWO OCEAN PLATEAU 9240 9.4 6.1 154 7.4 6.0 123
WHISKEY CREEK 6800 3.1 2.3 135 6.5 4.3 151
WHITE MILL 8700 4.1 4.4 93 6.4 5.5 116
WOLVERINE 7650 4.2 1.7 247 5.1 3.3 155
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Basin wide percent of average 122 142
WIND RIVER
BURROUGHS CREEK 8750 2.9 2.6 112 3.8 3.5 109
CASTLE CREEK 8400 1.6 -M * 2.6 -M *
COLD SPRINGS 9630 1.9 2.3 83 2.9 3.4 85
DEER PARK 9700 2.6 3.8 68 5.4 5.3 102
HOBBS PARK 10100 4.3 4.0 108 4.4 3.7 119
LITTLE WARM 9370 1.5 2.4 62 3.3 3.4 97
SOUTH PASS 9040 3.1 3.5 89 4.3 4.4 98
ST. LAWRENCE ALT 8620 .8 1.9 42 2.4 2.9 83
TOGWOTEE PASS 9580 5.3 5.2 102 7.0 5.4 130
TOWNSEND CREEK 8700 1.6 2.1 76 4.0 3.6 111
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Basin wide percent of average 86 105
BIGHORN BASIN
BALD MTN. 9380 5.9 4.7 126 5.6 4.2 133
BEAR TRAP MEADOW 8200 1.3 1.2 108 3.1 2.8 111
BLACKWATER 9780 7.7 5.7 135 7.4 5.2 142
BONE SPRINGS DIV 9350 6.3 4.4 143 6.2 4.0 155
EVENING STAR 9200 6.0 5.7 105 9.1 5.9 154
GRAVE SPRINGS 8550 1.6 2.3 70 3.7 3.0 123
KIRWIN 9550 4.7 3.2 147 5.9 3.3 179
MARQUETTE 8760 1.3 -M * 5.2 3.5 149
MIDDLE POWDER 7760 2.0 2.7 74 5.2 4.1 127
OWL CREEK 8975 1.5 1.6 94 2.4 1.9 126
POWDER RIVER PASS 9480 3.6 2.5 144 4.9 3.2 153
SHELL CREEK 9580 6.6 4.2 157 6.0 3.5 171
SYLVAN LAKE 8420 3.9 4.4 89 8.0 5.1 157
SYLVAN ROAD 7120 2.8 2.0 140 5.3 4.7 113
TIMBER CREEK 7950 1.4 2.0 70 4.9 2.6 188
YOUNTS PEAK 8350 4.2 3.2 131 5.6 3.8 147
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Basin wide percent of average 119 146
SHOSHONE RIVER
BLACKWATER 9780 7.7 5.7 135 7.4 5.2 142
EVENING STAR 9200 6.0 5.7 105 9.1 5.9 154
KIRWIN 9550 4.7 3.2 147 5.9 3.3 179
MARQUETTE 8760 1.3 -M * 5.2 3.5 149
SYLVAN LAKE 8420 3.9 4.4 89 8.0 5.1 157
SYLVAN ROAD 7120 2.8 2.0 140 5.3 4.7 113
YOUNTS PEAK 8350 4.2 3.2 131 5.6 3.8 147
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Basin wide percent of average 121 148
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.3 1.2 108 3.1 2.8 111
BIG GOOSE 7990 3.4 1.7 200 6.9 2.7 256
BONE SPRINGS DIV 9350 6.3 4.4 143 6.2 4.0 155
BURGESS JUNCTION 7880 3.4 2.8 121 6.1 3.5 174
CLOUD PEAK RESERVOIR 9860 5.1 2.9 176 6.1 4.1 149
DOME LAKE 8880 4.5 3.4 132 7.6 4.0 190
GRAVE SPRINGS 8550 1.6 2.3 70 3.7 3.0 123
HANSEN SAWMILL 8360 2.3 1.5 153 4.1 2.8 146
LITTLE GOOSE 8870 4.2 -M * 7.7 -M *
MIDDLE POWDER 7760 2.0 2.7 74 5.2 4.1 127
POWDER RIVER PASS 9480 3.6 2.5 144 4.9 3.2 153
SOLDIER PARK 8720 3.1 -M * 5.2 -M *
SUCKER CREEK 8880 5.5 2.5 220 6.3 3.8 166
TIE CREEK 6870 1.6 1.2 133 6.8 3.3 206
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Basin wide percent of average 140 162
BELLE FOURCHE
BLIND PARK 6890 1.4 1.6 88 2.3 3.8 61
COLE CANYON 5910 .5 1.6 31 2.4 2.6 92
NORTH RAPID CREEK 6130 1.8 1.2 150 1.6 3.4 47
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Basin wide percent of average 84 64
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 5.9 -M * 7.7 -M *
CINNABAR PARK 9574 3.0 3.9 77 5.6 5.0 112
COLUMBINE 9160 3.1 3.2 97 5.6 4.6 122
DIVIDE PEAK 8880 3.7 3.6 103 6.9 4.7 147
ELK RIVER 8700 2.3 1.9 121* 4.4 3.9 113
JOE WRIGHT 10120 3.3 5.0 66 6.8 6.1 111
NORTH FRENCH CREEK 10130 4.5 5.9 76 5.6 5.9 95
OLD BATTLE 10000 6.4 6.5 98 8.4 6.8 124
SAGE CREEK BASIN 7850 2.3 2.1 110 4.0 2.8 143
SOUTH BRUSH CREEK 8440 1.5 2.0 75 4.3 4.3 100
TOWER 10500 5.9 8.9 66 8.6 7.8 110
WEBBER SPRINGS 9250 4.3 4.6 93 7.2 5.8 124
WILLOW CREEK PASS 9540 2.3 2.7 85 3.7 3.5 106
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Basin wide percent of average 85 116
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.9 4.3 67 5.0 4.7 106
CASPER MTN. 7900 3.1 3.5 89 7.0 4.3 163
DEADMAN HILL 10220 5.8 4.0 145 5.5 4.2 131
DEER PARK 9700 2.6 3.8 68 5.4 5.3 102
LAPRELE CREEK 8375 1.8 2.3 78 4.1 3.4 121
RENO HILL 8400 3.3 3.2 103 5.1 4.2 121
ROACH 9700 3.7 3.0 123 5.8 4.1 141
SAND LAKE 10050 5.9 6.8 87 6.5 5.5 118
SOUTH PASS 9040 3.1 3.5 89 4.3 4.4 98
WINDY PEAK 7900 1.6 1.6 100 3.2 2.9 110
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Basin wide percent of average 94 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.1 1.3 238 4.3 3.4 126
DIVIDE PEAK 8880 3.7 3.6 103 6.9 4.7 147
OLD BATTLE 10000 6.4 6.5 98 8.4 6.8 124
SANDSTONE RS 8150 1.6 1.5 107 3.6 4.3 84
WHISKEY PARK 8950 3.2 4.3 74 6.8 5.6 121
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Basin wide percent of average 105 121
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.8 2.8 100 3.7 3.3 112
BLIND BULL SUM 8650 3.6 4.6 78 4.3 4.5 96
EAST RIM DIVIDE 7930 1.6 2.0 80 3.5 2.6 135
ELKHART PARK G.S. 9400 2.5 2.3 109 4.5 3.4 132
GROS VENTRE SUMMIT 8750 2.2 2.8 79 3.5 3.3 106
GUNSIGHT PASS 9820 3.0 -M * 4.5 -M *
KENDALL R.S. 7740 2.5 2.0 125 4.3 3.0 143
LOOMIS PARK 8240 2.4 2.8 86 4.7 3.6 131
NEW FORK LAKE 8340 2.5 1.8 139 3.9 3.0 130
POCKET CREEK 9360 2.8 -M * 3.8 -M *
SNIDER BASIN 8060 2.0 2.3 87 3.2 3.3 97
SPRING CREEK DIVIDE 9000 4.2 4.4 95 5.8 5.3 109
TRIPLE PEAK 8500 4.2 4.0 105 6.4 4.7 136
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Basin wide percent of average 96 120
LOWER GREEN RIVER
HAMS FORK 7840 1.8 1.5 120 3.8 2.7 141
HEWINTA 9519 1.3 1.6 81 4.6 3.9 118
HICKERSON PARK 9145 1.5 1.1 136 5.4 2.7 200
HOLE-IN-ROCK 9150 1.6 1.1 145 4.9 2.5 196
INDIAN CREEK 9425 4.6 4.4 105 5.3 5.1 104
KELLEY R.S. 8180 2.9 2.8 104 5.3 4.2 126
STEEL CREEK PARK 10200 2.4 3.0 80 5.2 4.1 127
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Basin wide percent of average 104 137
UPPER BEAR RIVER
BUG LAKE 7950 2.9 2.8 104 5.4 4.3 126
HAYDEN FORK 9212 2.4 2.0 120 6.5 4.6 141
KELLEY R.S. 8180 2.9 2.8 104 5.3 4.2 126
LILY LAKE 9156 1.7 2.1 81 4.8 4.4 109
MONTE CRISTO 8960 3.8 3.5 109 5.7 5.3 108
SALT RIVER SUMMIT 7760 1.9 1.5 127 3.7 3.6 103
TRIAL LAKE 9992 4.0 4.0 100 4.6 5.1 90
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Basin wide percent of average 105 114
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
If the Basin wide percent of average value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Average represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the average value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the average value for those sites on this day.
Contact your state water supply staff for assistance.
Reference period for average conditions is 1971-2000.
Provisional data, subject to revision.
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
Provisional data, subject to revision.
* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.
